Marc Sielemann

Marc Sielemann serves as CEO at LDB Group. LDB Group operates in the marketing & advertising sector with approximately 70.0 employees. The company is headquartered in Berlin, Berlin. LDB Group generates annual revenue of 1550000.0.

Industry & Role Insights

• • MessageCEO tracks 9,879 executives in the marketing & advertising sector.
• • 1,259 executive contacts are available in Berlin.
• • Our database includes 201,469 c suite-level executives.

Gmail Outlook Google Apps Microsoft Office 365 Atlassian Cloud Mapbox Active Campaign Apache Google Tag Manager WordPress.org Google Dynamic Remarketing DoubleClick Mobile Friendly Facebook Widget Google Analytics Google Font API reCAPTCHA Facebook Login (Connect) Google Maps (Non Paid Users) Google AdSense Facebook Custom Audiences Linkedin Marketing Solutions Google Maps DoubleClick Conversion AI

automotive omnichannel erreichbarkeit telefonzentrale voicebot kuenstliche intelligenz leadgenerierung kundenservice kundenzufriedenheit marketing marktforschung automobil advertising services cxbox callmanager cxbot carla imagebuilder leadmanagement followup whatsapp business api telefon kampagnen sms kampagnenmanager memo webrequest socialrequest backoffice service digitale kundenverwaltung omnichannel marketing kundenkommunikation e-mail kampagnen automotive ticket system automotive solutions customer journey kundenfeedback lead tracking kundenbindung 24/7 erreichbarkeit automatisierung reputationsmanagement feedbackmanagement kundenbewertungen online-bewertungen crm integration prozessoptimierung datenschutz scalability kundenbefragungen omnichannel lösungen kommunikationsmix serviceanfragen terminvergabe eskalationsmanagement multichannel strategy digitalisierung autohaus kundenanfragen bearbeitung servicequalität verbesserungen marketing & advertising

JV

Jose Vivar Group CTO-CIO at 014 Media

DA

David Amoros CEO, Creative Director at 023. Think. Create. Produce.

DP

David Puig CEO, Creative Director at 023. Think. Create. Produce.

MD

Mike Davison Group CEO at 1000heads

EN

Emily Nicholson Chief Operating Officer at 100 Pound Social

Outreach Guidance — marketing & advertising Sector

Executives like Marc Sielemann in the marketing & advertising sector receive targeted outreach from sales teams, recruiters, and investors. To stand out, personalize your message with industry-specific context and a clear, specific value proposition relevant to their role at LDB Group.

Marc Sielemann's Position in the MessageCEO Database

• •Marc Sielemann is 1 of 1 verified executive contact we track at LDB Group.
• •9,714 verified executive contacts in marketing & advertising are in the MessageCEO database.
• •1,253 verified executive contacts in Berlin are in the database.
• •67 verified contacts work at marketing & advertising companies in the 70.0 employee range (same size as LDB Group).

Executive contact data compiled from public business filings, LinkedIn public profiles, company press materials, and verified outbound email testing. We do not publish personal addresses or sensitive identifiers. Methodology & sources · Removal requests handled at /remove-info · Updated July 2026.

How do I reach Marc Sielemann directly?

Marc Sielemann's verified email address is available to MessageCEO Pro subscribers. They currently serve as CEO at LDB Group. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Marc Sielemann work for?

Marc Sielemann is CEO at LDB Group, a company in the marketing & advertising sector with 70.0 employees. The company is based in Berlin, Berlin.

Can I pitch or sell to Marc Sielemann?

As CEO at LDB Group, Marc Sielemann is a key decision-maker in the marketing & advertising sector. MessageCEO Pro gives you verified email to reach Marc Sielemann directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Marc Sielemann in?

Marc Sielemann works in the marketing & advertising industry as CEO at LDB Group. MessageCEO provides verified contact information for executives across all major industries.

Is Marc Sielemann's contact information verified?

Yes. MessageCEO verifies executive contact information through multiple data sources and regular validation checks. Marc Sielemann's profile is kept up-to-date with the latest available information.

Last updated: July 22, 2026